English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/111473
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 36 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título : Soil CO2 fluxes following tillage and rainfall events in a semiarid Mediterranean agroecosystem: Effects of tillage systems and nitrogen fertilization
Autor : Morell Soler, Francisco Joaquín; Álvaro-Fuentes, Jorge ; Lampurlanés Castel, Jorge; Cantero-Martínez, Carlos
Palabras clave : Semiarid
Precipitation
Long-term experiment
Soil CO2 emission
Soil CO2 flux
Fecha de publicación : oct-2010
Editor: Elsevier
Citación : Morell FJ, Álvaro-Fuentes J, Lampurlanés J, Cantero-Martínez C. Soil CO2 fluxes following tillage and rainfall events in a semiarid Mediterranean agroecosystem: Effects of tillage systems and nitrogen fertilization. Agriculture, Ecosystems and Environment 139 (1–2): 167–173 (2010)
Resumen: The response of soil CO2 flux to tillage operations and rainfall events was studied under semiarid Mediterranean conditions. The study was conducted on a barley monoculture agro-ecosystem during summer/autumn fallow periods in four consecutive years (2005–2008). The study compared three N fertilization levels (zero, medium; 60 kg N ha−1; high, 120 kg N ha−1) under three tillage systems (NT, no-tillage; MT, minimum tillage; CT, conventional tillage). Tillage operations led to a pulse of soil CO2 flux. This pulse was linearly related to soil CO2 flux on the day before tillage operations under MT (slope = 4.22) and CT (slope = 16.7), indicating the extent of soil disturbances. However, the associated soil CO2-C losses during tillage operations were reduced and similar among different tillage systems. The soil CO2 flux after rainfall was higher under NT, where it was linearly related to soil temperatures (0.15 × soil temperature–1.06). Soil CO2 fluxes decreased on the following days as the soil dried. N fertilization affected CO2 flux in 5 out of 35 observation days, with higher fluxes with N fertilization under conservation tillage systems. Emissions after rainfall events led to large soil CO2-C losses, and these were of higher magnitude under conservation tillage systems (NT and MT).
Descripción : 7 Pags.- 6 Figs.- 1 Tabl.
URI : http://hdl.handle.net/10261/111473
DOI: 10.1016/j.agee.2010.07.015
ISSN: 0167-8809)
Aparece en las colecciones: (EEAD) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Alvaro-FuentesJ_AgrEcosystEnvir_2010.pdf533,8 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.